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RadControls for DNN

10 Advanced UI Controls

Upload for DNN

Overview

RadUpload is a specialized file-upload component, employing a highly efficient proprietary HttpModule. It allocates a minimum amount of server memory, while enabling optimized and completely configurable single- and multi-file uploads.

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Optimized Memory Usage

Support for <input type=file> elements

Automatic File Validation

Automatic Storing of Files

Multi-file Upload

Customizable Appearance

Customizable Progress Area
more

Key features

Functionality

Appearance

Key features

Optimized Memory Usage

RadUpload features a highly efficient proprietary HttpModule. Unlike the standard upload mechanism, which puts all of the uploaded files in the server memory, RadUpload processes the upload stream in chunks with a variable size. The files are constructed in temporary folders on the server, which ultimately reduces the amount of allocated memory to a minimum.

Support for <input type=file> elements

RadProgressArea can now be used with the standard <input type=file> elements without the presence of RadUpload on the page. Developers may find this scenario useful when they want to create a completely custom upload form user interface.

Automatic File Validation

RadUpload can automatically validate the size, extension and the MIME type of the uploaded files. The valid files can be accessed using the UploadedFiles property of the RadUpload instance. The invalid files are still uploaded on the server and can be accessed using the InvalidFiles property if necessary. See a live demo.

Automatic Storing of Files

RadUpload provides a TargetFolder property, which allows you to specify the folder where the files will be stored after upload. See a live demo.

Multi-file Upload

You can easily upload several files at once - just select the files and submit the form. Furthermore, depending on the file-count settings, users can add client-side extra file selectors (inputs) if needed. This behavior is controlled using the InitialFileInputsCount and MaxFileInputsCount properties.

Customizable Appearance

The appearance of RadUpload can be easily customized using skins. The visibility of the user interface elements can be controlled using the ControlObjectsVisibility property. See a live demo.

Customizable Progress Area

Displays various information about the status of the upload progress:
• progress bar and count for the uploaded bytes
• the name of the file being currently uploaded
• progress bar and count for the uploaded files
• the elapsed and the estimated times
Each of the progress area elements can be easily hidden. See a live demo.

Functionality

Reduced server load

RadUpload now features a new HttpHandler specially designed for monitoring the process and updating its progress. As a result upon a request for progress update the server does not pass through the complete page lifecycle as this is not needed. This significantly reduces the server load and data transfer.

New RadProgressManager control

Used for monitoring the form submission progress and updating the progress areas on the page.

Monitor any measurable server process

Thanks to the new RadProgressManager you can use the progress area to monitor not only file uploads but also any time consuming tasks on the server such as heavy calculations, database queries, etc. See a live demo.

Multiple progress areas

The developers can now put any number of progress areas on a page. This is very useful in case you have long forms with multiple submit buttons. By placing multiple progress areas on the page you can ensure that at least one of them will be visible when the page is submitted.

Rich client-side API

Both RadProgressArea and RadProgressManager provide rich API for client-side customization (OnClientAdding, OnClientDeleting, OnClientClearing, OnClientFileSelected, OnClientDeletingSelected) See a live demo.

Appearance

Custom progress areas with templates

RadProgressArea contains a ProgressTemplate property, which can be used to fully customize its content and style. For example you can rearrange the progress elements or create your own progress bar. See a live demo.

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18 UI Components

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